Unity Gain Stable Op Amp achieves 1 nV/rt-Hz voltage noise.
Press Release Summary:
Employing circuit architecture that minimizes voltage noise and harmonic distortion, ADA4899-1 operational amplifier (op amp) delivers spurious free dynamic range (SFDR) of 117 dBc @ 1 MHz. It features 0.23 mV max offset voltage and 1 µA max input bias current. Capable of operating over -40 to +125°C temperature range, product is offered in 3 x 3 mm LFCSP (lead frame chip-scale package) and 8-lead SOIC (small outline integrated circuit) package.
Original Press Release:
Analog Devices Introduces the Industry's First High-Speed Unity Gain Stable 1nV/rt-Hz Op Amp
New op amp eases design challenges of high-resolution data acquisition systems that require extremely low levels of noise and distortion.
NORWOOD, Mass - Analog Devices Inc. (NYSE: ADI), a global leader in high-performance signal processing solutions and market leader in amplifiers, today expands its leading portfolio with an amplifier that eases design challenges of high-resolution data acquisition systems by minimizing two fundamental error sources; voltage noise and harmonic distortion. The ADA4899-1 is the industry's first unity gain stable operational amplifier (op amp) to achieve 1-nV/rt-Hz voltage noise and spurious free dynamic range (SFDR) of 117 dBc at 1 MHz. By minimizing voltage noise and harmonic distortion, the ADA4899-1 is ideal for applications that require the highest degree of accuracy, such as radar-based collision avoidance systems, medical ultrasound and precision instrumentation.
"Analog Devices consistently aids in the development of high-performance data acquisition systems by providing designers with amplifiers that push linear technology to new levels," said Lew Counts, ADI fellow and vice president of Advanced Analog Technologies, Analog Devices. "Only few op amps have the noise or distortion performance of the ADA4899-1, but none have both with rock-solid unity gain stability. This device, along with our amplifiers and leading PulSAR data converters, makes achieving the highest system performance easier then ever before."
About the ADA4899-1 Operational Amplifier
The ADA4899-1 op amp features a patent-pending advanced circuit architecture that addresses the fundamental performance trade-offs between noise and distortion, which are inherent in traditional input stages. This enables the ADA4899-1 to deliver both extremely low voltage noise (1 nV/rt Hz) and very low distortion (117 dB at 1 MHz) at unity gain. In addition to the superior AC performance, the ADA4899-1 has DC input specifications that are rarely found in high-speed op amps, 0.23mV max offset voltage and 1uA max input bias current. The ADA4899-1 works well with ADI's leading 18-bit PulSAR(R) ADCs, including the AD7674 (www.analog.com/AD7674).
Pricing and Availability
The ADA4899-1 is in full production. The device is rated to work over an extended industrial temperature range of -40 degrees C to +125 degrees C. It is available in two packaging options: a tiny 3 mm x 3 mm LFCSP (lead frame chip-scale package), which reduces lead inductance, provides better thermal characteristics, and saves board space, and the traditional 8-lead SOIC (small outline integrated circuit) package. The ADA4899-1 is priced at $1.89 per unit in 1,000-piece quantities. Additional information can be found at www.analog.com/ADA4899
About Analog Devices
Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the most long-standing, high-growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers around the world, representing virtually all types of electronic equipment. Celebrating 40 years as a leading global manufacturer of high-performance integrated circuits used in analog and digital signal processing applications, Analog Devices is headquartered in Norwood, Massachusetts, and employs approximately 8,900 people worldwide. The company has 30 product design centers around the world and manufacturing facilities in Massachusetts, California, North Carolina, Ireland and the Philippines. Analog Devices' common stock is listed on the New York Stock Exchange under the ticker "ADI" and is included in the S&P 500 Index.
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